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Choose the word whose underlined part has a different pronunciation from the others in each group:
Choose the word whose main stress is placed differently from the others in each group:
Select the synonym of the following bold and underlined word in each sentence in the unit:
Can you name the sea animal in each picture?
It is divided into five different parts: the Pacific, Atlantic, Indian, Antarctic and Arctic Oceans.
Today’s scientists have overcome many of the challenges of the depth by using more sophisticated tools.
Together, they cover 75% of our Earth.
They can send submarines and devices to investigate the ocean depths, taking photographs and samples of animal life to bring back to the surface for further study.
How can scientists now reveal the secrets of the ocean and marine life?
Small or oversized, plant or animal, the ocean’s living things contribute to its endless variety, its biodiversity.
Understanding the interactions of the ocean and marine life gives us an indication of the planet’s health and the effects of human activity.